It's hard to train on low/no carb when you really want to train balls out and hard. If you're doing some singles? Sure. That shit is easy. Not a lot of fuel required for that. However if you want to grow reps are required. Don't give a shit about the debating of that. Reps are required for growth, and so are carbs. As much as I like keto diets for fat loss, and agree you can still hit reps early on in them, eventually the bottom falls out with only one carb up per week. This is not an ideal environment for growth and strength in my opinion. It's also a time when both lab rats and meat heads agree for the most part. Keto diets are not growth producing environments. If your goal is strength and mass, it's not ideal.